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Thread: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West Afric

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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    As simple as I can make this. Aerosol/droplet is not the same thing as airborne.
    Quote Originally Posted by MMC View Post
    I wouldn't be concerned if there is none around me who has been infected. But I tell you what.....I am willing to allow any of you to go into a separate room with nothing but an air vent attached to a room of infected humans with the ebola.....in another room not more than 6 feet away. Then lets see if it can be transmitted by air.




    Pathology of Experimental Aerosol Zaire Ebolavirus Infection in Rhesus Macaques......

    1US Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, MD, USA
    2Integrated Research Facility Frederick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA

    How the virus is spread among humans during outbreaks is largely unknown; however, close contact and iatrogenic spread have been documented.6,8,20,66,82 In NHP, there is 1 report of transmission among research animals by way of infectious droplets and aerosolized particles.51 Aerosol exposure as a means of human infection has never been documented. EBOV, along with several other highly pathogenic agents, has the potential to be used in biowarfare as aerosolized weapons and are therefore classified as biological select agents and toxins (BSATs).1,11,28,32,45,69 These factors, coupled with a lack of licensed human vaccine or approved medical countermeasures, amplify the risks of EBOV to human health.

    In summary, the pathogenesis we propose for aerosol EBOV infection in rhesus, based on the results of the current study, is as follows:

    We predict this sequence of events would be the same in human aerosol infection.....snip~

    http://vet.sagepub.com/content/50/3/514.full
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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Quote Originally Posted by mak2 View Post
    As simple as I can make this. Aerosol/droplet is not the same thing as airborne.
    According to the Center for Aerobiological Sciences, U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick, Maryland:

    (1) Ebola has an aerosol stability that is comparable to Influenza-A

    (2) Much like Flu, Airborne Ebola transmissions need Winter type conditions to maximize Aerosol infection

    Filoviruses, which are classified as Category A Bioterrorism Agents by the Centers for Disease Control and Prevention (Atlanta, GA), have stability in aerosol form comparable to other lipid containing viruses such as influenza A virus, a low infectious dose by the aerosol route (less than 10 PFU) in NHPs, and case fatality rates as high as ~90% ."

    "The mode of acquisition of viral infection in index cases is usually unknown. Secondary transmission of filovirus infection is typically thought to occur by direct contact with infected persons or infected blood or tissues. There is no strong evidence of secondary transmission by the aerosol route in African filovirus outbreaks. However, aerosol transmission is thought to be possible and may occur in conditions of lower temperature and humidity which may not have been factors in outbreaks in warmer climates [13]. At the very least, the potential exists for aerosol transmission, given that virus is detected in bodily secretions, the pulmonary alveolar interstitial cells, and within lung spaces".....snip~
    Last edited by MMC; 10-20-14 at 01:48 PM.

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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Analysis:

    Its clear that when Ebola is in the air it is at least as hardy as Influenza. Its also clear that coughing and sneezing is what makes Influenza airborne; the same should be expected of Ebola.

    Moreover, just as sun, heat, and humidity along the Earths' Equatorial regions serve to 'burn' Influenza out of the air, the same should be expected of Ebola. The difference with Ebola is that physical contact with even the tiniest amounts of infected bodily fluid can cause infection, hence unlike flu it also readily spreads in equatorial regions. When Ebola spreads to the regions of the Earth which experience Fall and Winter Flu seasons, airborne Ebola infectious routes are to be expected in conjunction with direct contact infection.

    Ebola has the capability to infect pretty much every cell in the entire human respiratory tract. Similarly, our skin offers little resistance to even the smallest amounts of Ebola. How much airborne transmission will occur will be a function of how well Ebola induces coughing and sneezing in its victims in cold weather climates. Coughing and nasal bleeding are both reported symptoms in Africa.....snip~
    Last edited by MMC; 10-20-14 at 01:42 PM.

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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    This is as simple as I can make it. I should have dropped this back when I said I would.

    FAQ: Methods of Disease Transmission
    What is transmission by direct contact?
    Direct contact transmission requires physical contact between an infected person and a susceptible person, and the physical transfer of microorganisms. Direct contact includes touching an infected individual, kissing, sexual contact, contact with oral secretions, or contact with body lesions. This type of transmission requires close contact with an infected individual, and will usually occur between members of the same household or close friends and family.

    Diseases spread exclusively by direct contact are unable to survive for significant periods of time away from a host. Sexually transmitted diseases are almost always spread through direct contact, as they are extremely sensitive to drying.

    » What is transmission by indirect contact?
    Indirect contact transmission refers to situations where a susceptible person is infected from contact with a contaminated surface. Some organisms (such as Norwalk Virus) are capable of surviving on surfaces for an extended period of time. To reduce transmission by indirect contact, frequent touch surfaces should be properly disinfected.

    Frequent touch surfaces (fomites) include:

    Door knobs, door handles, handrails
    Tables, beds, chairs
    Washroom surfaces
    Cups, dishes, cutlery, trays
    Medical instruments
    Computer keyboards, mice, electronic devices with buttons
    Pens, pencils, phones, office supplies
    Children's toys
    » What is transmission by droplet contact?
    Some diseases can be transferred by infected droplets contacting surfaces of the eye, nose, or mouth. This is referred to as droplet contact transmission. Droplets containing microorganisms can be generated when an infected person coughs, sneezes, or talks. Droplets can also be generated during certain medical procedures, such as bronchoscopy. Droplets are too large to be airborne for long periods of time, and quickly settle out of air.

    Droplet transmission can be reduced with the use of personal protective barriers, such as face masks and goggles. Measles and SARS are examples of diseases capable of droplet contact transmission.

    » What is airborne transmission?
    Airborne transmission refers to situations where droplet nuclei (residue from evaporated droplets) or dust particles containing microorganisms can remain suspended in air for long periods of time. These organisms must be capable of surviving for long periods of time outside the body and must be resistant to drying. Airborne transmission allows organisms to enter the upper and lower respiratory tracts. Fortunately, only a limited number of diseases are capable of airborne transmission.

    Diseases capable of airborne transmission include:

    Tuberculosis
    Chickenpox
    Measles
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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    That book chronicles the 1989 outbreak of Ebola Reston, which was transmitted among monkeys by breathing. In 2012, Canadian researchers found that Ebola Zaire, which is involved in the current outbreak, was passed from pigs to monkeys in the air.

    Dr. James Le Duc, the director of the Galveston National Laboratory at the University of Texas, said the problem is that no one is keeping track of the mutations happening across West Africa, so no one really knows what the virus has become.

    One group of researchers looked at how Ebola changed over a short period of time in just one area in Sierra Leone early on in the outbreak, before it was spreading as fast as it is now. They found more than 300 genetic changes in the virus. "It's frightening to look at how much this virus mutated within just three weeks," said Dr. Pardis Sabeti, an associate professor at Harvard and senior associate member of the Broad Institute, where the research was done. Even without becoming airborne, the virus has overwhelmed efforts to stop it.....snip~

    Ebola airborne: A nightmare that could happen - CNN.com

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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Please note the word COULD in your link. It hasnt.
    Quote Originally Posted by MMC View Post
    That book chronicles the 1989 outbreak of Ebola Reston, which was transmitted among monkeys by breathing. In 2012, Canadian researchers found that Ebola Zaire, which is involved in the current outbreak, was passed from pigs to monkeys in the air.

    Dr. James Le Duc, the director of the Galveston National Laboratory at the University of Texas, said the problem is that no one is keeping track of the mutations happening across West Africa, so no one really knows what the virus has become.

    One group of researchers looked at how Ebola changed over a short period of time in just one area in Sierra Leone early on in the outbreak, before it was spreading as fast as it is now. They found more than 300 genetic changes in the virus. "It's frightening to look at how much this virus mutated within just three weeks," said Dr. Pardis Sabeti, an associate professor at Harvard and senior associate member of the Broad Institute, where the research was done. Even without becoming airborne, the virus has overwhelmed efforts to stop it.....snip~

    Ebola airborne: A nightmare that could happen - CNN.com
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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Quote Originally Posted by mak2 View Post
    Please note the word COULD in your link. It hasnt.

    When they do it with primates and think it can be done with humans.....that is a perspective that hasn't changed.

    (1) Ebola has an aerosol stability that is comparable to Influenza-A

    (2) Much like Flu, Airborne Ebola transmissions need Winter type conditions to maximize Aerosol infection....snip~



    Oh, and note what the researchers are saying about Mutations with the disease. Just within a 3 week timespan.

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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Panicky nonsense. Aerosol is droplet by another name. It's NOT airborne! It's coughed or sneezed, but it falls out of the air onto surfaces. Airborne infections are smaller and lighter than droplets, and can dift on eddies and draughts much farther than droplets which tend to remain in the immediate area of the patient. Don't panic.
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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    I have tried to explain that 25 different ways.
    Quote Originally Posted by Manc Skipper View Post
    Panicky nonsense. Aerosol is droplet by another name. It's NOT airborne! It's coughed or sneezed, but it falls out of the air onto surfaces. Airborne infections are smaller and lighter than droplets, and can dift on eddies and draughts much farther than droplets which tend to remain in the immediate area of the patient. Don't panic.
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    Re: 101st Airborne Won’t Get Full Protective Hazmat Suits for Ebola Mission in West A

    Quote Originally Posted by mak2 View Post
    Please note the word COULD in your link. It hasnt.
    According to the Center for Aerobiological Sciences, U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick, Maryland:


    Got anything to say about these guys Mak. Post 243 was their Analysis. Any reason you skipped over them?

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